the observation was made with an automated video camera (KLEMOI in IMO Network),
the fireball showed intense, highspeed flickering
images can be seen here: http://forum.meteoros.de/viewtopic.php?f=8&t=57204 (german language meteor forum)
the video can be seen here: http://www.sternwarte-herne.de/misc/20170423_221204.AVI

I (Bernd K.) am reporting an observation of Hans S. (with his permission) which he made with an automated, integrating allsky video camera. He uses a DFK41AU02.AS color camera with a Fujinon FE185C046HA fisheye lens (1,4mm f/1.4). The image can be seen at Hans' homepage:
The brightness is only a rough estimate from the image; also the duration can't be determined precisely because of the integration time of 60 sec. But it shows the complete length of the path while my video shows only a part of it.
I estimated the coordinates of the endpoints in Hans' image by visual comparison with Guide 9. I'm quite sure that I measured the direction correctly, but there is a small chance that it may be opposite (Az from 71 deg to 119 deg).

This report is also made by Bernd K. of an automated, shuttered video observation recorded by Jörg S. of Herford. He uses an ASI 178mm with 60 sec integration time. The images can be seen here (cropped and contrast streched):
http://www.sternwarte-herne.de/misc/20170423_2212UT_JS_Herford_crop_cs.jpg
and here (original):
http://www.sternwarte-herne.de/misc/20170423_2212UT_JS_Herford.jpg
The shutter brakes are only hardly visible when zooming into the cropped image.
The brightness is only a rough estimate. Also the duration can't be determined precisely because of the integration time of 60 sec. I estimated the coordinates of the endpoints in Jörgs image by visual comparison with Guide 9.

The observation was made with an automated video camera (HERMINE in IMO Network) at Sternwarte Herne. It uses a Mintron 12V6 EX with a 6 mm f/0.8 Computar lens. The fireball showed intense, highspeed flickering. It was simultaneously captured with my second camera (KLEMOI) at home in Overath. The brightness is only an estimate.